HD 223311

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Template:Short description

HD 223311
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius[1]
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) 6.08[3]
Characteristics
Spectral type K4III[4]
U−B Template:Engvar +1.71[3]
B−V Template:Engvar +1.452[4]
Variable type suspected[5]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[4] km/s
Proper motion (μ) RA: +0.01[6] mas/yr
Dec.: −19.04[6] mas/yr
Parallax (π)3.5950±0.0884 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)−0.80[1]
Details
Mass5.0[7] Template:Solar mass
RadiusScript error: No such module "val".[2] Template:Solar radius
LuminosityScript error: No such module "val".[2] Template:Solar luminosity
Surface gravity (log g)1.04[8] cgs
TemperatureScript error: No such module "val".[2] K
Metallicity [Fe/H]−0.43[8] dex
Rotational velocity (v sin i)1.7[9] km/s
Age1.8[10] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[11]
Database references
SIMBADdata

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HD 223311 is a star in the equatorial constellation of Aquarius. It has an orange hue and is visible to the naked eye as a dim star with an apparent visual magnitude of 6.08.[3] Based on parallax measurements, the star is located at a distance of approximately 910 light years from the Sun. It is a radial velocity standard[12] star that is drifting closer to the Sun at the rate of −20 km/s.[4] The star is situated near the ecliptic and thus is subject to lunar occultations.[13]

This is an aging K-type giant star with a stellar classification of K4III.[4] Having exhausted the supply of hydrogen at its core, it has cooled and expanded off the main sequence. At present it has 41 times the girth of the Sun.[2] It is a suspected variable star of unknown type that has been measured ranging in brightness from magnitude 5.01 down to 5.26 in the infrared I band.[5] The star is radiating 496 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,267 K.[2]

References

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  1. ↑ a b Script error: No such module "citation/CS1".
  2. ↑ a b c d e f g h Template:Cite DR2
  3. ↑ a b c Script error: No such module "citation/CS1".
  4. ↑ a b c d e Script error: No such module "citation/CS1".
  5. ↑ a b Script error: No such module "citation/CS1".
  6. ↑ a b Script error: No such module "citation/CS1".
  7. ↑ Template:Cite Gaia DR3
  8. ↑ a b Script error: No such module "Citation/CS1".
  9. ↑ Script error: No such module "Citation/CS1".
  10. ↑ Script error: No such module "Citation/CS1".
  11. ↑ Template:Cite simbad
  12. ↑ Script error: No such module "citation/CS1".
  13. ↑ Script error: No such module "citation/CS1".

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External links

Template:Stars of Aquarius

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